White Mage Frontlines help

[Zyphione]

Are you playing by yourself or with a friend? The advice would vary but if you search through the forums, you have a number of options on tips to play decently.

The simple things you should remember is to always keep Divine Seal Medica and Regen on your team by using Surecast.
If you are suddenly being attacked by the entire enemy team, you could attune - but if you are confident you can kite or have enough people help pull players off you, you can simply sprint or use Equanimity.
For quick defense to cast, you could swiftcast stoneskin.
You can also push silly melee away with fluid aura.

There are many more ways to work around situations as a WHM, but these are the most common!

[Potatoes]

even before thinking about skills, just simply be the absolute last person to engage. people tend to ignore you more if you're way in the back healing compared to being the first one on the point and blowing all your cooldowns to try and hold it.